to consider or examine in speech or writing
"The author talks about the different aspects of this question"
"The class discussed Dante's `Inferno'"
To converse or debate concerning a particular topic.
"The team gathered to discuss their new marketing strategy before the launch."
In plain English: To talk about something with other people to share ideas or opinions.
"We decided to discuss our vacation plans over dinner."
Usage: Use "discuss" to describe the act of talking about a specific subject together, such as discussing plans at a meeting. It requires an object, so you discuss the topic, not that you discuss with someone about the topic.
The word "discuss" entered English through Middle French and Anglo-Norman as a borrowing from the Latin discutiō, which originally meant to strike or shake apart. This sense of breaking something up evolved over time to mean examining a topic thoroughly, leading to its current definition.